using prefabricated lining lowered into a hole filled with liquid or viscous mass

Industry

  • CPC
  • E21D5/01
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Patents Grantslast 30 patents

  • Information Patent Grant

    Excavation boring and shoring method and equipment

    • Patent number 11,988,044
    • Issue date May 21, 2024
    • Ted R. Dimitroff
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rectangular working well with preset pipe jacking hole and sliding...

    • Patent number 11,143,027
    • Issue date Oct 12, 2021
    • Infrastructure Renewal Institute of Southern China
    • Fuming Wang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Water-tight bore shaft foundation

    • Patent number 5,176,470
    • Issue date Jan 5, 1993
    • Gewerkschaft Auguste Victoria
    • Hans-Otto Lutgendorf
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Concrete lining of drilled shaft

    • Patent number 4,423,981
    • Issue date Jan 3, 1984
    • Santa Fe International Corporation
    • Hans Nilberg
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and device for installing a shaft lining in shafts through a...

    • Patent number 4,401,397
    • Issue date Aug 30, 1983
    • Gewerkschaft Walter
    • Albrecht Sommer
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for producing cement or plaster

    • Patent number 4,399,946
    • Issue date Aug 23, 1983
    • Mono Oakes Limited
    • Christopher Stevenson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Composite underground fluid conduit of concrete and steel sections

    • Patent number 4,241,762
    • Issue date Dec 30, 1980
    • Gutehoffnungshutte Sterkrade Aktiengesellschaft
    • Heinz Link
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3695044

    • Patent number 3,695,044
    • Issue date Oct 3, 1972
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3636714

    • Patent number 3,636,714
    • Issue date Jan 25, 1972
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3593799

    • Patent number 3,593,799
    • Issue date Jul 20, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3554287

    • Patent number 3,554,287
    • Issue date Jan 12, 1971
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3496726

    • Patent number 3,496,726
    • Issue date Feb 24, 1970
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3364996

    • Patent number 3,364,996
    • Issue date Jan 23, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3216200

    • Patent number 3,216,200
    • Issue date Nov 9, 1965
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    2837109

    • Patent number 2,837,109
    • Issue date Jun 3, 1958
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    2490350

    • Patent number 2,490,350
    • Issue date Dec 6, 1949
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2488074

    • Patent number 2,488,074
    • Issue date Nov 15, 1949
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2341574

    • Patent number 2,341,574
    • Issue date Feb 15, 1944
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents